For price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, Chelmsford, MA 01824

Phone: 978-250-3343

Fax: 978-250-3373

Order On-line at www.hittite.com

Application Support: Phone: 978-250-3343 or apps@hittite.com

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8 - 1

General Description

Features

Functional Diagram

The HMC739LP4(E) is a GaAs InGaP Heterojunc-

tion Bipolar Transistor (HBT) MMIC VCO. The

HMC739LP4(E) integrates a resonator, negative

resistance device, varactor diode and divide-by-16

prescaler. The VCO’s phase noise performance is

excellent over temperature, shock, and process due

to the oscillator’s monolithic structure. Power output is

+8 dBm typical from a 5V supply voltage. The voltage

controlled oscillator is packaged in a low cost leadless

QFN 4x4 mm surface mount package

Pout: +8 dBm

Phase Noise: -93 dBc/Hz @ 100 kHz Typ.

No External Resonator Needed

24 Lead 4x4mm SMT Package: 16mm²

Typical Applications

The HMC739LP4(E) is ideal for:

• Point-to-Point Radios

• Point-to-Multi-Point Radios / LMDS

• VSAT

Parameter

Min.

Typ.

Max.

Units

Frequency Range

Fo

Fo/2

23.8 - 26.8

GHz

Power Output

RF OUT

RF OUT/2

RF OUT/16

3

-3

-7

14

5

-1

dBm

dBm

dBm

SSB Phase Noise @ 100 kHz Offset, Vtune= +5V @ RF Output

-93

dBc/Hz

Tune Voltage

Vtune

1

13

V

Supply Current

Icc (RF), Icc (DIG)

160

200

220

mA

Tune Port Leakage Current (Vtune= 13V)

10

µA

Output Return Loss

3

dB

Harmonics/Subharmonics

1/2

3/2

-20

-30

dBc

dBc

Pulling (into a 2.0:1 VSWR)

30

MHz pp

Pushing @ Vtune= 5V

-65

MHz/V

Frequency Drift Rate

4

MHz/°C

MMIC VCO w/ HALF FREQUENCY OUTPUT

& DIVIDE-BY-16, 23.8 - 26.8 GHz

v03.0309